While this has been an event shorn of some of the biggest names the quality of the matches has, so far, been better than in many recent years, and last night was no disappointment either.

The Swiss re-found his focus and some consistency on serve in the decider as Zverev's level dipped, earning three breaks to close it out 6-1. "I'm relieved and I know now I can play freely against Marin Cilic knowing that I have qualified".

The 36-year-old usurped a 4-0 lead to the 6ft 6in bit-hitter, who netted his own set point opportunity at 6-5, and paid the price as Federer took it 8-6 after 54 minutes of spectacular action.

"It was a good battle and I always enjoy myself at this attractive arena", said Federer, who has now reached the semi-finals 14 times.

Sock, who seized qualification by winning the final Masters event of the season in Paris, lost his debut match to Federer, but he is now 1-1.

Sock blasted a ball into the crowd in frustration, but channeled his anger to break in the first game of the second set and was clearly enjoying himself, moving around the court nimbly as he levelled the match in dominant fashion.

Federer only landed 43 percent of first serves in the second set and it finally cost him in the 12th game, when Zverev capitalised on his third set point to force a decider.

Jack Sock recorded an enthralling three-set victory over Marin Cilic to enhance his chances of progressing past the round-robin stages of the ATP Finals. "It's been an interesting morning, a fire alarm went off at 4am and we all had to exit our hotel so it was a long morning. It's an awesome atmosphere, you make me feel like home". My coach growing up nicknamed me "Showtime" because I love playing in front of people, and there is always a lot going on.

The top two players from each group qualify for the semi-finals and after top seed Rafa Nadal pulled out through injury Federer is now a massive odds-on favourite to win the tournament.

The worst damage appeared to be in the Kurdish town of Sarpol-e-Zahab in the western Iranian province of Kermanshah. Full-scale rescue operation could start only with the dawn, and yet unknown, are still people under the rubble.

The Food and Drug Administration has approved the first drug that can digitally track whether patients have taken their medicine. The patch and sensor is manufactured by the company Proteus Digital Health and aripiprazole marketed by Otsuka Pharmaceutical.

A prosecutor in Texas has been fired after an Uber driver said she hit him, belittled him and threatened him during a ride. He said she became upset when he tried to initiate small talk and grew angrier after she asked him to change directions.

Now an undeveloped patch of desert 45 minutes west of Phoenix, the future of Belmont might hinge on old-fashioned infrastructure. Several big players working on autonomous vehicles including Intel, Uber and Waymo are testing innovations in Arizona.

The report attributes part the success to the new Apple Watch Series 3, which hit global sales as high as 3.9 million. Motley Fool co-founders Tom and David Gardner have spent more than a decade beating the market.

Watford have issued a hands off warning to Everton , and will not entertain another approach for manager Marco Silva . Dyche, thought to be keen on talking to Everton, would cost £2.5 million in compensation.

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